C-06-Q190mediumsingle_mcqThe formula of magnesium nitrate is—aMg(NO3)2\mathrm{Mg(NO_3)_2}Mg(NO3)2bMgNO3\mathrm{MgNO_3}MgNO3cMg2NO3\mathrm{Mg_2NO_3}Mg2NO3dMg(NO2)2\mathrm{Mg(NO_2)_2}Mg(NO2)2